Jimi,

Mainsail is the same size as a standard 5.7 (different measurements but total area is essentially the same)

Jib is a bit larger as it extends below the bridle intersection and goes to the Spi pole.

Kite is a bit larger but only 1m sq, luff is a bit longer than std as the pole is lower.

As for the mods to the boat:

Wider beams
carbon mast (same as std length)
carbon boom
carbon spi pole
carbon tiller bar
wider tampoline
Marstrom M20 rudders
hulls are canted as per std 5.7

Rudder system is now sorted, it was just a little bit too light. So we have done a bit of work and its now good.

Interestingly we broke the rudder gudgeon bolts on the port side and lost the fitting, so Greg (my crew) made a new one out of Carbon! it looks so neat that nobody has even noticed it!

I would run with the std sail for your boat, maybe a bigger head measurement but nothing radical.

My boat should need T foils more than a std boat due to its width, but I havn't had a problem so far. I would suggest finding a set of Marstrom Tornado rudders second hand. They will improve the feel a lot compared to the std AHPC foils.